Harris® Model 601-60AR-580 Light/Medium Duty Economical General Purpose Argon Flowgauge Regulator, CGA-580Harris Model 601 60AR 580 argon single stage flowgauge regulator designed to be compact and economical with features only available in more expensive flow control devices. Used where size and or cost are major factors. This flowgauge regulator features a brass body and bonnet, 50mm ABS plastic dual scale gauges, one piece encapsulated seat design with an internal filter and PTFE Teflon seat, CGA 580 inlet connection and 5 8 18 female outlet